A collection of news photographs from around the world over the past 24 hours.

Luci Hamlin and her husband, Specialist Timothy Hamlin, wait to get back to their home on base at Fort Hood, Texas, following an incident in which a soldier shot dead three colleagues and injured 16 others before killing himself.

Workers prepare ballot boxes at a warehouse in the Afghan city of Herat ahead of elections on 5 April.

Residents of Hami, China, are warned to reduce outdoor activities and avoid dangerous jobs during a sandstorm.

Turkey's Soner Demirtas (left) competes with Germany's Georg Harth in the men's freestyle 74kg category of the Wrestling European Championships in Vantaa, Finland.

Iraqi workers clean furnace pipes at a cement plant in Najaf, south of Baghdad.

UKIP leader Nigel Farage (left) and Deputy Prime Minister Nick Clegg slugged it out in the second of two debates on Britain's future in Europe. The BBC's chief political correspondent Norman Smith said Mr Clegg was much more fired up than he had been last week, while Mr Farage had been more measured.

A 7.6 magnitude earthquake rocked northern Chile, just over 24 hours after an 8.2 tremor killed six people, destroyed 2,600 houses and led to mass evacuations. A tsunami alert in Chile and Peru was issued and then lifted after waves of 2.4ft (0.7 meters) hit coastal areas.

A Buddhist monk uses a tablet to take pictures as he visits the Angkor Wat temple in north-western Cambodia. The temple has been digitally mapped, allowing people to visit online.

The US Defence Secretary, Chuck Hagel, watches a demonstration on the flight deck of the USS Anchorage during a tour with his counterparts from South East Asia at Joint Base Pearl Harbor-Hickam, near Honolulu.